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Aviation History
1928
1928 - 1005.PDF
OCTOBER 25, 1928 S Mi The Espenlaub monoplane has its parasol wing supported on four cantilever struts. The engine is a 40 h.p. 6-cyl. An- zani. The Klemm Light 'Planes Generally of similar design and construction, the two light 'planes exhibited by Leichtflugzeugbau Klemm of Boblingen are both low-wing monoplanes mainly of wood construction, but whereas the type I..25 is a landplane with 20-h.p. Mercedes engine, the type L.25 W is a seaplane fitted with the little nine-cylinder Salmson radial air-cooled engine. The landplane is already familiar to readers of FLIGHT, having been described and illustrated last year when it paid a visit to Croydon, and the seaplane is, therefore, perhaps the more interesting of the two. It might be mentioned in connection with the landplane, however, that the fuselage is now entirely ply-wood covered. As long ago as 1919 the first Klemm-Daimler light 'plane was produced by Herr Regierungsbaumeister Hans Klemm at the Daimler works at Sindelfingen. This machine flew very well with a motor-cycle engine of onlv 12 h.p. The fact that the seaplane type shown at Berlin, the type L.25 \V, has succeeded in getting " unstuck " with three on board indicates that the efficiency of the Klemm designs is very high. The machine is not, of course, designed to carry three nor- mally, but on the occasion in question, M. Magnet of the Salmson company provided the " overload " (which was a very substantial one, M. Magnet probably weighing some 15 stone !). Apart from the differences in undercarriage, and the small changes in the nose occasioned by the different engines, the two types exhibited have the same characteristics, i.e., SKKSfiffiffiKffi The Klemm I.. 25 W seaplane is a two-seater with 40 h.p. Salmson engine. This machine has taken off the water with three on board. The float undercarri- age is inter- changeable with the landplane unit. an all-wood fuselage, ply-wood covered, and low cantilever monoplane wings, also covered with ply-wood. Folding is ^iot such a simple operation as on British light 'planes, as each wing-half has to be detached from the fuselage and, in order to get the lower wing surface against the fuselage, the port wing has to be carried over to the starboard side and vice versa. A minor change is to be noted in the fuselage decking. Previously this was of the sharp-ridge " roof " type, but on both machines exhibited this has been altered to a slightly curved deck fairing more like those found on British light 'planes. Both machines are well made and well finished, and both have a fairly large luggage compartment aft of the rear cock- pit. The landplane is exhibited with This space occupied by a well-stocked picnic basket. It is interesting to leam that more than 100 of the Klemm light 'planes have now been built, and sold partly in Germany and partly outside. No information is available concerning the dimensions of the two Klemm monoplanes, but following are the weights and performances of the L.25 landplane : tare weight, 265 kg. (583 lbs.) ; permissible load, 215 kg. (473 lbs.) ; total loaded weight, 480 kg. (1,056 lbs.). Maximum speed, 115 km. h. (71 ;5 m.p.h.) • landing speed, 35-40 km./h. (22-25 m.p.h.), presumably according to whether the machine carries one or two occupants. The range is given as 700-1,500 km. (435-930 miles), the greater figure presumably representing the range when no passenger is carried and the weight thus "* m m & 935
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